Question: When does Bydgoszcz begin and end daylight saving time?
Paraphrase: During which time does Bydgoszcz begin and end daylight saving time?
SPARQL (Wikidata): SELECT ?obj WHERE { wd:Q41252 p:P421 ?s . ?s ps:P421 ?obj . ?s pq:P1264 wd:Q36669 }